Log only, please bring your own pen. This place does get very busy in the summer, so the difficulty rating is mostly because of all the muggles. 3/3/20: Congratulations to SquirtsExplorers for another first to find
From both the listed coordinates and these you should see the valley swim club sign. That's where you'll need to look. N 38 52.01001 W 104 52.1010